Question: Is the cydvk driver optimized for streaming?
Response: The Cydvk.sys is a subset of the cyusb.sys driver. The Cydvk.sys was built specifically for the CYStream application. The Cydvk.sys is an application specific driver, where as the CyUSB.sys is a general purpose driver that can be used for many applications. The Cydvk.sys being a subset of the CyUSB.sys driver has performance that are comparable with the CyUSB.sys. Cydvk.sys is not a production ready driver and is not recommended for new designs. Applications that work with Cydvk.sys will work with CyUSB.sys as well.